Loading machine



' Se t. 30, 1947.

F. E. HARTSFIELD LOADING MACHINE Filed July 14, 1945 3 She ets-Sheet 11321111 I. Ha rtsfi'e/c/ INENTOR.

ATTORNEYS Sept. 30, 1947. v F. E. HARTSFIELD LOADING MACHINE Filed@1514, 1945 5 Sheets-Sheet 2 INVENTOR. Frank [.Hartsfie/ ATTORNEYS Sept.30, 1947. F. E. HARTSFIELD I 2,423,156

I LOADING MACHINE Filed July 14, 1945 3 Sheets-Sheet 5 Frank 1:. Harmfiel A TTORJVEYS' Patented Sept. 30, 1947 LOADING MACHINE Frank E.Hartsfield, McKinney, Tex., assignor of one-fourth to C. M. Matney andone-fourth to R. S. Raper, both of McKinney, Tex.

Application July 14, 1945, Serial No. 605,016

15 Claims. 1

This invention relates to new and useful im- I provements in loadingmachines.

One object of the invention is to provide an improved vehicle loader ofthe type employing the ground as a fulcrum point and operated by backingthe vehicle toward the load to be lifted and dumped into the truck.

A particular object of the invention is to provide an improved loader ofthe character described which is complete within itself and adapted tobe detachably connected with the rear end of a vehicle so as to beoperated thereby, but otherwise without attachment or connection of anyof its other elements with the vehicle, whereby no elements are added tothe vehicle or its wheels, other than a simple coupling or attachingmeans at the rear end thereof, thus leaving the vehicle free for otheruses.

A further object of the invention is to provide an improved loaderhaving a scoop arranged so that the direct rearward thrust of thevehicle frame is imparted thereto so as to produce a better scoopingaction when the Vehicle is moved rearwardly.

Another object of the invention is to provide an improved loaderincluding a portable carriage having ground wheels for supporting it,when moved rearwardly and forwardly, by the vehicle to which thecarriage is attached and a groundengaging fulcrum member connected witha linkage frame suspended from the carriage and carrying a receptaclewhereby more efficient scooping and loading may be accomplished.

A construction designed to carry out the invention will be hereinafterdescribed together with other features of the invention.

The invention will be more readily understood from a reading of thefollowing specification and by reference to the accompanying drawings,wherein an example of the invention is shown, and wherein:

Fig. l is a side elevation of a loader, constructed in accordance withthe invention, attached to the rear end of a truck and in loading orscooping position,

Fig. 2 is a similar view showing the loader in full dumping position,and

Fig. 3 is a rear elevation of the loader as illustrated in Fig. 2.

In the drawings, the numeral l0 designates a substantially horizontalframe of a carriage, indi-v cated generally by the letter A. The frameincludes longitudinal side bars I I which are angular in cross-sectionand. are provided with depending angular standards l2 suitably securedto the side bars near their rear ends in any suitable manner, as bywelding. A transverse axle I3 is fastened to the lower ends of thestandards and ground wheels M are suitably journaled onsaid axle out--Wardly of said standards. These wheels may be equipped with rubber tiresif desired. Near the forward end of the frame upright plates l5 havetheir'lower ends suitably secured to the inner sides of the bars H, asby welding. At the forward ends of the bars ll, bearing brackets IE aresecured on the upper sides thereof and the ends of an angular cross barH are secured to the brackets so that said bar overhangs the same. Thecombination of the side bars I l and the cross bar H provides a U-shapedframe.

A rock shaft l8 extends between the side plates and has its endssuitably secured therein. This shaft pivotally supports the upper andforward end of a linkage frame indicated generally by the letter B,which frame extends rearwardly between and beyond the side bars II. Onthe rear end of the frame B, a receptacle. C is pivotally mounted. Afulcrum member D having ground penetrating prongs E at its forward endinclines upwardly and is pivotally connected at its rear end to thelower forward end of the frame B. Links F pivotally attached at theirforward ends to the upper rear end of the member D extend longitudinallyand rearwardly in the frame B, with their rear ends pivotally attachedto the upper portion of the receptacle C.

tions the prongs would immediately dig into the ground and possibly givea slight rocking movement to the receptacle which would aid in gettingunder the load. In view of the fact that the frame Ii] of the carriageis disposed substantially horizontal, and the linkage frame B extendinglongitudinally thereof, the direct rearward thrust of the frame G of themotor vehicle is imparted to the loader and thus in co-action with thedragging fulcrum member D, more efficient loading is performed.

When the receptacle 0 has been loaded, the rearward movement of thetruck H is stopped the links F support and swing the receptacle (2 sothat when it overhangs the body K of the truck...

it will be in dumping position and thus depositthe load in said body.

It is to be observed that; it is not. necessary; to extend the fulcrummember a great: distance..- under the body of the truck because in, theloading position the prongs E will be substantially under the rear axleof the truck. The SWiIIgIOf' the frame B will be sufiicient to cause thereceptacle Citooverhang the-body Kto such anextent that. the load willbedischarged into. the. medial portion of said body, therebygiving it.an opportunity to spread over. the. entire. area. of such a body.

The. linkage frame Bfwillinow. be described in detail. Hangers '19;each. composed. of twinspaced bars, depend. from. the rock shaft. I8.and have their upper endslwelded or otherwise fastened on a transversesleeve l9l', lo.osely mounted on said shaft. Between each pair of. bars,an elongate collar 20. isjournaled. on a. bolt 21 enaging in holesZZ'insaidbars, at. the medial portions. thereof. Aplurality, of. saidhol'esare provided so that the collars. may be vertically ad- .iusted.vThese collars. are. welded or. otherwise scoured tothe forward ends.ofjlongitudinal main, bars 23.. which. extend rearwardly and, are bent.downwardly. at. 24 so as toincline. rearwardly and again bentrearwardlyat. 25; The. scoop. Cfis of the usual. construction, having a. flatbottom 26. andan upright backzT connected by angular side plates. 28..The. scoop'is. pivoted by means of studs 29 projectingfrom the lowerportions of the. side. plates adjacent. the open end of said scoop. and.engaging in the. extended rear ends of the. bars 23; Itwill, be observedthat the upper portion of the scoop normally lies between the bends 24and. thus the. downwardly bent portions of the mainbars lie on each sideof saidscoop- Elongate collars: 30. are. journaledpn a swing shaft. 3.!between the lower ends of the individual bars. of each hanger IS, inwhich bars said shaft is suitablymounted. The collars 30 are welded orotherwise secured to the forwardends of struts 32jwhich. underlie themain barsand incline upwardly andrearwardly toward saidbars. Shackles 33are secured to the rear ends of'the struts so as to straddle themainbars. Each shackle carries a cross bolt on pin 34 which rides onthe. upper edge of the correlated. main bar, whereby the rear ends ofthe struts are slideably suppfllftedl on the mainv bars. Elongate guides35 are secured to. the upper edgesof the main bars and extend throughthe shackles so as to confine the bolts 34.

The'fulcrum member 13 includes a sleeve 36 which is journaled on the.swing shaft 3| between the hangers: IS; The rear ends of" a pair ofcylindrical bars 31' are'suitably secured to the. sleeve near each endthereof, whereby they are spaced apart on each side of the longitudinalcenter of the apparatus. These bars telescope elongate sleeves 38, theends of which may be flattened, bent and pointed to form the prongs E.Near the prongs E, the sleeves are connected 4 and braced by atransverse bridle bar 39 fastened thereto. Near their upper ends, thesleeves are provided with a plurality of spaced holes 40 for receivingcotter keys 4| adapted to pass through apertures 42 in the bars 31,whereby the fulcrum member D may be longitudinally adjusted to extend itor retract it. Adjacent the sleeve 36; the bars 37 are provided withupstanding ears 43 which are provided with a plurality of spaced holes44 for receiving pivoted bolts 45. The links F are sinuous in shape andhave spaced holBs. 46v at their forward ends receiving the bolts betweenthe ears, whereby the parts are adlustahly connected. The rear ends ofthe links are bent? upwardly; and rearwardly and have their rearendspivoted to cars 41 secured to the outer faceof theback 21 of thescoop C near the top thereof.

A, telescoping reach bar 48 is secured at its forward end to atransverse sleeve 49 loosely mounted. on a bar 50 extending between thesleeves 38 and securedthereto. The elementsof this bar are provided.with spaced holes 5! and 52- for receiving a cotter key 53 whereby thetelescoping bar may be longitudinally adjusted. The bar 48 issecured atits rear end to the medial portion of a cross bar 54 slideably confinedin the guide 35', on the upper edges of the main bars 23, by means of.keepers 55 at its outer ends. When. the linkage frame B is swung, thecross bar will travel longitudinally of themain bars in said guide.

For supporting the carriage frame H) at the proper elevation to aline itwith the truck frame G, a- U-shaped prop56 rests upon th reach bar 48and has itsupper ends secured to a rock shaft 51 journaled in thebrackets IS on the forward ends of the bars II. A hand lever 58 isfastened to one end of this shaft and is provided with a dog 59, of theusual construction, for engaging a toothed locking segment 60 fastenedon the adjacent side bar H, whereby said shaft and prop may be locked inadjusted positions. By this means, the forward end of the carriage framemay be supported and'vertically adjusted as desired. Onthe forward endof each side bar I l a yoke-shaped coupler BI is fastened. Each coupleris slotted. vertically and has a hook 62 pivoted therein. A draw bar 63is transversely disposed across the rear end of the frame G and has itsends bent inwardly and flattened to form brackets 64 whereby it may besecured to the sides of the frame. By adjusting the lever 58 thecouplers may be brought to the proper elevation so that the draw bar63'wil1 enter the jaws of said couplers, displace the books 62 and catchbehind the latter when the truck H is backed into the loader,v to effecta coupling. Merely by lifting the hooks, the truck may be drivenforwardly and disengaged from the loader, the carriage of'whichwillremain supported by the prop 58.

Asxbefore statedthe truck'and carriage are moved rearwardly to load thescoop C. In order to brace the scoop and impart the rearward thrust ofthe truck frame through the carriage frame to the scoop, triangularbraces 65 are secured to the main bars adjacent the bends 24 and 25 sothat the lower portions of the upright members of these braces will abutthe axle 13 when the carriage is moved rearwardly, thereby imparting thethrust to the bottom of the scoop. The scoop may be used to move under aload, as apile of material; or'it may be disposed at such an angle as todig into the ground and scoop up a load of dirt. The angular adjustmentof the scoop is controlled by adjusting the bolts 44 of the links F inthe holes 45 and 46.

It is believed that the co-action of the various elements will be clearfrom the drawings and the description previously given. However, it ispointed out that when the carriage A is pulled forwardly and the fulcrumbar is swung, that the hangers are swung rearwardly and upwardly, whichalso causes the main bars 23 to be swung likewise. Since the shackles 33are slid rearwardly by the struts 32, it is necessary to weld atransverse bar 3% to the undersides of the main bars 23 to arrest thesliding movement of said shackles when the frame is swun upwardly. Itwill be observed that owing to the fact that the pivot points of thelinks F on the bolts 44 being offset from the pivot points of the mainbars on the bolts 2|, the scoop C will be swung to a dumping positionwhen the linkage frame is elevated.

It is pointed out that the loader when once attached to a truck may bequickly backed into a load which will be expeditiously picked up andelevated and dumped into the truck body K, when the truck is drivenforward. The scoop C may be made of sufficient capacity to load the bodyK at a single dumping operation. When the truck is loaded, it may bequickly detached from the loader simply by lifting the hook 62 anddriving the truck away. If the capacity of the truck body is greaterthan that of the scoop, the loader can be left attached to the truckuntil the latter is loaded. After the loader is once attached to thetruck, it will be operated solely by moving said truck backward andforward and without manual aid.

The foregoing description of the invention is explanatory thereof andvarious changes in the size, shape and materials, as well as in thedetails 'of the illustrated construction may be made, within the scopeof the appended claims, without departing from the spirit of theinvention.

What I claim and desire to secure by Letters Patent is:

1. A loader including, a swingable linkage frame having jointed angularmembers and longitudinal bars pivoted to the angular members, means forpivotally suspending the angular members of the frame, a loadingreceptacle carried by the bars of the frame, and a ground-engagingmember pivoted to the angular members of the frame and adapted to swingto an upright position to swing said angular members when the suspendingmeans is moved forwardly.

2. A loader as set forth in claim 1, wherein the receptacle is pivotedto the frame bars, and means pivoted to the receptacle and the fulcrummember for swinging the receptacle when the fulcrum member is actuated.

3. A loader including, a swingin frame, means for plvotally supportingthe frame whereby it may be swung from a loading position upwardly to adumping position, a receptacle carried by the frame, a fulcrum memberpivoted to the frame and having ground-engaging elements for swingingthe frame, and a member adjustably connecting the frame and the fulcrummember for regulating the elevation to which the receptacle is swungupwardly.

4. A loader including, a carriage having a frame supported on groundwheels, means at one end of the frame for detachably connecting it to avehicle, uprights on the carriage frame, a linkage frame pivotallysupported at one end by said uprights, a receptacle at the opposite endof the linkage frame, and a ground-engaging fulcrum member pivoted tothe. linkage frame adapted to swing to an upright position for swingingsaid frame to dump the receptacle when the carriage is moved forwardly.

5. A loader as set forth in claim 4, and means carried by the frameincluding a prop engaging the fulcrum member for vertically adjustingthe carriage frame and supporting it.

6. A loader including, a portable carriage, a linkage frame mounted toswing in a vertical arc on said carriage and carryin a receptacle, aground-engaging fulcrum member pivoted to the frame adapted to swing toan upright position while remaining in engagement with the ground, meansfor vertically adjusting supporting the forward end of the carriage, andcouplers on the forward end of the carriage adapted to engage the drawbar of a truck when the latter is backed to the loader.

'7. A loader including, a portable carriage, hangers pivotally suspendedby said carriage, main bars pivoted to said hangers and extendingrearwardly of the carriage, a receptacle carried by the rear ends of themain bars, a groundengaging fulcrum member extending forwardly of thecarriage and pivoted at its rear end to said hangers, and linkspivotally connecting the receptacle with the fulcrum member.

8. A loader as set forth in claim 7, and struts pivotally connected withthe hangers and slideably connected with the main bars.

9. A loader including, a portable carriage, hangers pivotally suspendedby said carriage, main bars pivoted to said hangers and extendingrearwardly of the carriage, a receptacle carried by the rear ends of themain bars, a groundengaging fulcrum member extending forwardly of thecarriage and pivoted at its rear end to said hangers, links pivotallyconnecting the receptacle with the fulcrum member, struts pivotallyconnected with the hangers and slideably connected with the main bars,and reach bars pivoted to the fulcrum member at one end and slideablyconfined on the main bars at its opposite end.

10. A loader as set forth in claim 9 and an adjustable prop carried bythe carriage engaging on the reach bar.

11. A loader including, a portable carriage having a wheel-supportedframe provided with means for attaching it to the rear end of a vehicle,a swinging linkage frame including elongate side members, means forpivotally supporting the side members of the linkage frame at one endfrom the carriage frame, a receptacle connected directly to the oppositeend of the swinging frame, a ground engaging fulcrum member pivoted atone end to the pivotally supporting means, and side bars pivotallyconnecting the upper portion of the receptacle with the pivotallysupporting means.

12. A loader as set forth in claim 11, and means on the carriage forlimitin the upward swing of the linkage frame.

13. A loader as set forth in claim 11, and means mounted on the carriageframe co-acting with the fulcrum member for adjusting the carriage to anelevation to attach it to a vehicle.

14, A loader including, a swingable linkage frame having longitudinalmain bars and side links, a receptacle attached at vertically spacedportions to the: bars and links of the frame, a swinging support towhich the main bars are pivoted, a. ground-engaging'fulcrum memberpivoted at one end to the swinging support at a point spaced from/thepivotal connection of the main bars to saidsupport, and means forpivotally connecting the links with the pivoted end of thegroundengaging member.

15. A loader as set forth in claim 14, wherein the receptacle is pivotedto the bars and links of the linkage frame, and means pivoted to thefulcrum member having sliding connection with the main bars for swingingsaid bars upwardly.

FRANK E. I-IARTSFIELD.

REFERENCES CITED UNITED STATES PATENTS Number Name Date 162,221 CraigApr. 20, 1875 518,487 Collins Apr. 17, 1894 852,919 Whittemore May 7,1907 1,341,904 Hubbard June 1, 1920 2,056,476 McDermott Oct. 6, 19362,225,787 McDermott et a1. Dec. 24, 1940 2,360,341 Herrick Oct, 17, 19442,377,786 Johnson et a1 June 5, 1945

